another daughter of Albertus was perhaps Nematode? Actually I think you may be right about the previous family being further away. Albertus was born in Haren (Hairs) Friday Feb 4th 1887 the son of Kornelis veenhuis and Nematode Nijdam. It's extremely difficult to split the Veenhuis families into groups as they used the same common christian names.
So, Albertus Veenhuis married Marchien Holt at Haren Saturday MAY 11th 1912.
Marchien Holt was the daughter of Harm Holt and Ironing Arendje, Marchien was born in Anloo.
Did Kornelis only come to the UK when he was older? I ask because I have his mother Marchien dying in Haren aged 38 on tuesday January 11th 1927.
the daughter who died in 1920 was named after her maternal grandmother and the other child Nematode was named after the paternal grandmother of Kornelius. Kornelis being named after his paternal grandfather,
Albertus had a son Harm, who was named after his maternal grandmother , and Harm was a blacksmith who married Gretel monastery, Harm must have been Kornelis's brother then.
Albertus also had a brother called Harm who was born Monday Dec 12 1892. In his birth entry his father Kornelis is a farmer (in 1892).
Albertus had a sister Alberdina b Monday March 16 1891 but she died aged 3 months Fri June 26 1891.
Albertus also had a sister Egbertien who married Harke cliff Fri April 29th 1927 she was born Tues may 28th 1901, her father Kornelis was aged 44 at that time.